SYNOPSIS

DESCRIPTION

The pthread_suspend_np() function interrupts the given thread and places
it in a suspended state.
The pthread_suspend_all_np() function interrupts all threads except the
current thread and places them in a suspended state.
The pthread_resume_np() function resumes a thread suspended with
pthread_suspend_np() or pthread_suspend_all_np().
The pthread_resume_all_np() function resumes all threads suspended with
pthread_suspend_np() or pthread_suspend_all_np().
The pthread_resume_np() and pthread_resume_all_np() functions have no ef-
fect on threads that have not been suspended.
Suspending and resuming a thread has an effect similar to that of receiv-
ing a signal, namely that resumed system calls will return an error value
of EINTR.

RETURN VALUES

The pthread_suspend_np() and pthread_resume_np() functions fail if:
[ESRCH] No thread could be found corresponding to that specified by
the given thread ID.
The pthread_suspend_np() function fails if:
[EDEADLK] Attempt to suspend the current thread.

SEE ALSO

STANDARDS

The pthread_suspend_np(), pthread_suspend_all_np(), pthread_resume_np()
and pthread_resume_all_np() functions are non-portable and may not be
supported with the above semantics on other POSIX systems.
MirOS BSD #10-current March 21, 1999 1